Unnamed 1990 North Indian Ocean Cyclone
● Data reliability: ReliableWeather satellites monitored it throughout, so its track and intensity are relatively accurate (Atlantic and E. Pacific since 1966, other basins since 1980).
未命名 at 1990-04-17 20:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为Depressions, max wind 约 12.9 m/s (1 分钟平均) , at 1990-04-18 20:00:00前后结束, total 记录 5 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1990-04-17 20:00 | 9.0°N, 87.4°E | Depressions | 10.3 | - |
| 1990-04-18 02:00 | 10.5°N, 86.4°E | Depressions | 12.9 | - |
| 1990-04-18 08:00 | 12.5°N, 86.5°E | Depressions | 12.9 | - |
| 1990-04-18 14:00 | 13.8°N, 87.7°E | Depressions | 12.9 | - |
| 1990-04-18 20:00 | 14.4°N, 88.2°E | Depressions | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1990108N09087 / IO011990. This area has no official Chinese name; the original English name is used. Intensity grades follow the classification of the local agency in the basin, converted from 1-minute sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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